210Po concentration in Perna perna mussels:: looking for radiation effects

被引：25

作者：

Godoy, J. M. ^{[1
,2
]}

de Oliveira, Monica S. ^{[1
]}

de Almeida, Carlos Eduardo B. ^{[1
]}

de Carvalho, Zenildo L. ^{[1
]}

da Silva, Eliza R. ^{[1
]}

Fernandes, Flavio da Costa ^{[3
]}

Pitanga, Fernanda L. ^{[1
]}

Danelon, Olga M. ^{[3
]}

机构：

[1] Comis Nacl Energia Atom, Inst Radioprotecao & Dosimetria, BR-21780160 Rio De Janeiro, Brazil

[2] Pontificia Univ Catolica Rio de Janeiro, Dept Quim, Rio De Janeiro, Brazil

[3] Inst Estudos Mar Almirante Paulo Moreira, Arraial Do Cabo, RJ, Brazil

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2008年 / 99卷 / 04期

关键词：

Po-210; mussels; comet assay; micronuclei; biomarkers;

D O I：

10.1016/j.jenvrad.2007.09.003

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Twenty ropes with 400 Perna perna mussels seeds Q cm shell size) were set-up on floating structures at Cabo Frio Island, Atraial do Cabo, approximately 100 km northeast of Rio de Janeiro city. A rope was taken out on a monthly basis, and the shell sizes of 100 seeds were measured. The haemolymph of 10 male and 10 female individuals was taken, and the same individuals were separated for Po-210/Pb-210 determination. After one year of monthly sampling, no clear correlation was observed between the Po-210 concentration, mussel's age and weight. A mean Po-210 concentration of 155 Bq kg(-1) wet weight basis, was obtained, which is comparable with data reported in the literature. The radiation dose did not have any observable effect on the micronuclei frequency and DNA breaks in the mussels. This was probably due to the low dose rate, 0.02 mGy d(-1), in comparison with the suggested potential dose limit of 10 mGy d(-1). (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：631 / 640

页数：10

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